Answer: 1 : 20%
2 : 80%
3 : -90% (negative 90%), if no negatives are allowed, than it is a 90% decrease.
4 : $90
5: $31.50
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
20000*7=140,000
1.4 * 10 to the 5 power,
So its order of magnitude is 5.
Answer:
56
Step-by-step explanation:
Answer:
Step-by-step explanation:
4(x+3)+2x= 4x+12
4x+12+2x= 6x+12
and the second is
6(x+2)=
6x+12